Hey, i know its not an LS1 truck, but i thought maybe some of you guys would have some two cents anyways. My dad is looking for a good cat-back for his truck. He has a short bed, ext. cab Z71. He has a dynomax on it now and doesn't like it. Wants something a bit louder. Doesn't want the split rear either. I notice the pickins are a bit slim for a truck of his vintage. Is the edlebrock one any good?